Overview
- William Sawalich was not medically cleared for the NASCAR Xfinity Series Championship Race at Phoenix as he continues to experience concussion-like symptoms.
- Justin Bonsignore will again substitute in Joe Gibbs Racing’s No. 18 Toyota after filling in at Martinsville, where he earned his first Xfinity top-10.
- Phoenix will mark Bonsignore’s first career start at the one-mile track.
- Sawalich’s rookie campaign ends two weeks early, closing with three top-five and nine top-10 finishes in 31 starts.
- Joe Gibbs Racing is also prioritizing the Owner’s Championship with Aric Almirola in the No. 19, and Sawalich says he is targeting readiness for Daytona’s season opener.